What is petrofabric analysis?
PETROFABRIC ANALYSIS. PETROFABRIC ANALYSIS. After Bruno Sander. A method to study the microstructural relations and orientations in tectonically deformed rocks. Usually, involves plotting orientations of axes of uniaxial minerals or poles to 001 planes of micas (biaxial).
What is rock fabric?
In geology, a rock’s fabric describes the spatial and geometric configuration of all the elements that make it up. In sedimentary rocks, the fabric developed depends on the depositional environment and can provide information on current directions at the time of deposition.
What is Petrofabric?
Petrofabrics is the study of deformation features in rocks, usually at the grain scale. The most commonly studied features are fractures (distribution, morphology, and orientation), twinning, pressure solution, and recrystallization fabrics. Petrofabrics provides information on the following: Mechanisms of deformation.
What is foliation and lineation?
Foliation is the result of the parallel arrangement of (micas, etc.) in a plane perpendicular to the maximum principal applied stress. A lineation is caused by a similar growth of elongate minerals (eg. Slate, schist, and gneiss are three common foliated metamorphic rocks.
What is sedimentary rock fabric?
The fabric of a sedimentary rock controls the rock’s porosity and permeability and therefore its ability to hold and/or transmit fluids such as oil and water. The orientation, or lack thereof, of the crystals or grains that make up a sedimentary rock constitutes one aspect of fabric.
Whats the definition of foliated?
1 : composed of or separable into layers a foliated rock. 2 : ornamented with foils or a leaf design.
What is meant by lineation?
1a : the action of marking with lines : delineation. b : outline. 2 : an arrangement of lines.
What is fabric in igneous rock?
In igneous rock: Fabric. A major part of rock texture is fabric or pattern, which is a function of the form and outline of its constituent grains, their relative sizes, and their mutual relationships in space.
What is the major difference between breccia and conglomerate?
Breccia and conglomerate are very similar rocks. They are both clastic sedimentary rocks composed of particles larger than two millimeters in diameter. The difference is in the shape of the large particles. In breccia the large particles are angular in shape but in conglomerate the particles are rounded.
What is another word for foliated?
Foliated Synonyms – WordHippo Thesaurus….What is another word for foliated?
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What is the meaning of Phaneritic?
[ făn′ə-rĭt′ĭk ] Of or relating to an igneous rock in which the crystals are so coarse that individual minerals can be distinguished with the naked eye. Phaneritic rocks are intrusive rocks that cooled slowly enough to allow significant crystal growth. Compare aphanitic.
What is a lineation in literature?
The technique of making lines of verse that involves also the rationale for breaking the lines, whether by closure (coming to the end of the phrase, clause, or sentence at the end of the line) or by enjambment (continuing the sentence beyond the line boundary, into the next line) (Kinzie, 1999).